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package org.apache.doris.nereids;

/**
 * optimize plan process has some phase, such as analyze, rewrite, optimize, generate physical plan
 * and so on, this hook give a chance to do something in the planning process.
 * For example: after analyze plan when query or explain, we should generate materialization context.
 */
public interface PlannerHook {

    /**
     * the hook before analyze
     */
    default void beforeAnalyze(NereidsPlanner planner) {
    }

    /**
     * the hook after analyze
     */
    default void afterAnalyze(NereidsPlanner planner) {
    }
}
